| A | B |
|---|
| FERTILIZATION | The combining of an egg and a sperm. |
| MEIOSIS | Process in which sex cells are formed (haploid) |
| GAMETOPHYTE STAGE | When all plant structures are made of haploid cells. |
| SPOROPHYTE STAGE | Plant structures are made of cells with the diploid number (2n) of chromosomes. |
| MOSS | Green low-growing masses of plants that reproduce both sexually and asexually. |
| DIPLOID CELL | A cell with the 2n number of chromosomes |
| ALTERNATION OF GENERATIONS | When a plant’s life cycle alternates between a sex-cell produce stage and a spore-producing stage. |
| FRONDS | The leaf structure of a fern. |
| RHIZOME | The underground stem of a fern |
| SORI | Structures on the underside of the fronds that produce spores. |
| PROTHALLUS | The fern gametophyte. (sex cell)o |
